Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1998-04-10
2000-05-16
Fuller, Benjamin R.
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
731462, 73146, B60C 2302
Patent
active
060620722
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a device for monitoring the air pressure in the air chambers of pneumatic tires of motor vehicles, especially those as used in personal automobiles and trucks, whereby the invention can also be used in all other pneumatic tires.
WO 93/16891, published Sep. 2, 1993, discloses a control unit for measuring the air pressure of pneumatic tires of vehicles, in which a pressure measuring system is arranged in each wheel which detects the pressure of the tires and, via a transmitter also arranged in the tire, transmits the corresponding measured pressure value. This signal is received by a receiver, arranged in the immediate vicinity of the wheels, and then processed further. Alternatively, the use of a central receiver is also possible, which detects the signals of all the tires of the vehicle.
The pressure measuring system transmits the pressure measuring signal in intervals, whereby a respective identifying signal is also simultaneously transmitted, on the one side to ensure that only the value of its own vehicle will be received and not, for example, transmitter signals sent from a coincidentally nearby stopped vehicle, and to further ensure that the signal sent will unequivocably reflect the position of the respective tires. To provide the necessary electrical power needed by the transmitter, a lithium battery is utilized which rotates with the tire.
It is the object of the present invention to create a device for monitoring the tire pressure of pneumatic tires in which the assembly is simpler in comparison to other known devices, which is comfortable for the user, and which is reliable to operate.
This object is solved according to the invention by subject matter of claim 1.
Preferred embodiments of the invention are the subject matter of the depending claims,
The present invention provides an antenna, which is in electrical connection with the transmitter but not integrated therewithin.
In this way, it is possible to improve the electromagnetic transmission of the signal and especially its efficiency.
In a first configuration of the invention, the antenna is integrated in the tread of the vehicle's tires. Especially preferred is providing several windings which are arranged next to each other along the circumference. According to a further configuration, the antenna is integrated into the side flank of the tire. Also in this case, a multitude of neighboring windings is preferable.
In this manner, the position of the antenna can be allotted to the inner side of the wheel as well as to the outer side.
In the above configuration examples, the transmitter can be fixed preferably in relation to the tires and not in relation to the rim. The transmitter will then be preferably integrated into the tire sidewall or into the tread. Integration, in this case, refers to preferably vulcanization, also in regards to the antenna.
In addition to the possibility of vulcanizing the antenna and, if necessary, also the transmitter in the tire sidewall or the tread, the possibility also exists of fixing the antenna directly on the tread or on the side flank of the tires. By the term "fixing," in this case, several different possibilities for affixing are meant, especially the possibility of adhering the antenna onto the tires. Further to the term "affix," however, also fixing the antenna in relation to the tread or the side flanks is possible, in which terminal force and especially elastic force is used to hold the antenna in a predetermined position. In this configuration, additional holding arrangements are preferably provided, which provide for fixing the antenna in relation to the tire contour and the tire circumference. Also in this case the transmitter is preferably fixed in relation to the tires, meaning that the position of the transmitter is fixed through the position of the antenna in the tires and not through a position in relation to the rims. It is therefore not required to bring the transmitter into a precise position in relation to the rim.
In another configuration, the antenna is
REFERENCES:
patent: 4319220 (1982-03-01), Pappas et al.
patent: 4734674 (1988-03-01), Thomas et al.
patent: 5612671 (1997-03-01), Mendez et al.
patent: 5717135 (1998-02-01), Fiorletta et al.
patent: 5731516 (1998-03-01), Handfield et al.
Mock Markus
Vollm Ernst
Aw-Musse Abdullahi
Dynatron AG
Fuller Benjamin R.
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